Their night on the tiles with friends came just 36 hours before they are due to tie the knot and helped reinforce their down-to-earth image – with the couple arriving at the hotel at 12.30am and leaving the nightclub at 2.45am.

Dressed casually – both wore jeans, while Zara sported a coral-coloured blouse top with her hair pulled back in a bun, while Tindall was in black velvet jacket and white shirt – the pair look relaxed with a tight-knit group of friends.

When they arrived at the hotel, which has become one of the most popular destinations on Edinburgh’s trendy George Street since it opened in 2007, they were accompanied by a member of their security team and a chauffeur.

Champagne and Cocktails for Royal Wedding Party

The group drank Veuve Cliquot champagne, Caipirinha cocktails as well as Grey Goose vodka with coke, lemonade, soda and Red Bull and happily posed for pictures with other revellers.

As well as Tigerlily and Lulu, Montpeliers owns a number of the most popular style bars and venue in Edinburgh, including the Opal Lounge, which was a favourite haunt of Prince William while he was studying in Scotland.

DJ Jez Hill was a fixture at the Opal Lounge throughout that time. Now he is the resident DJ at Lulu and was delighted to be playing requests for another royal guest.

Jez, who owns his own business, Freak Music, said: “I DJ-ed many a time when William was in Opal Lounge, including when he brought Harry along, so it was great to be playing for a Royal audience again.

“A girl from Zara’s group came up and asked if I could play Party Rock Anthem by LMFAO for her. If she’s requesting stuff like that, then she’s definitely up on the latest party tunes.

“It’s really popular and I had already played it once, but was happy to put it on again. The floor was jumping.”

David Johnston said that while the group enjoyed a few drinks, they were not partying in excess.

He added: “They were having a lot of fun, but being sensible as I’m sure they wanted to be clear headed for the last day of wedding preparations.

“They were a delight to have in and we’d gladly have them back any time. Everyone at Montpeliers wishes them the best for their big day and hope they have a long, happy life together.”